CN217691402U - High-voltage and low-voltage integrated battery pack - Google Patents
High-voltage and low-voltage integrated battery pack Download PDFInfo
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- CN217691402U CN217691402U CN202221410613.9U CN202221410613U CN217691402U CN 217691402 U CN217691402 U CN 217691402U CN 202221410613 U CN202221410613 U CN 202221410613U CN 217691402 U CN217691402 U CN 217691402U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a high-voltage and low-voltage integrated battery pack, which can save space, reduce the weight of the whole vehicle, reduce the production cost and improve the production efficiency by integrating the high-voltage and low-voltage batteries; the power type battery cell is inserted between the energy type battery cells, the good low-temperature cold starting performance of the power type battery cell can be utilized, heat is transferred to the energy type battery cell when a vehicle is started, and the low-temperature performance of the battery pack is improved; the height and width of the power type battery cell are the same as those of the energy type battery cell, so that the power type battery cell is convenient to assemble and integrate, and the thickness of the power type battery cell is smaller than that of the energy type battery cell, so that the power type battery cell is suitable for the characteristic of small capacity of a low-voltage battery; the distance between the positive pole and the negative pole of the power type battery cell is larger than or smaller than the energy type battery cell, so that circuit faults caused by contact of the busbar are prevented, and the two battery cells can be prevented from being confused.
Description
Technical Field
The utility model relates to a power battery field especially relates to a high pressure, low pressure integrated battery package.
Background
Current pure electric vehicles include two separate battery systems: the low-voltage 12V or 48V battery is electrically connected with auxiliary components such as a vehicle control unit, a motor control system, a battery management system, a controller of high-voltage electrical equipment, light, an instrument, a central control lock and the like; the high-voltage battery pack, namely the power battery, is used for providing the motor rotation power to drive the wheels to advance. The low-voltage battery generally adopts a power type battery cell, meets the requirement of high instantaneous discharge power of vehicle starting, and has good low-temperature cold starting performance; the high-voltage battery generally adopts an energy type battery cell, and meets the requirement of longer endurance mileage of the vehicle. Specifically, the energy type cell has high capacity and high energy density, but the maximum discharge current is low; the power type battery cell has relatively low capacity and low energy density, but can support larger maximum continuous and maximum instantaneous discharge current, and has high power density.
The two battery systems are respectively arranged at different positions of the whole vehicle. In order to save space, reduce the weight of the whole vehicle, reduce production cost and improve production efficiency, the two can be considered to be combined into a whole and integrated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a high pressure, low pressure integrated battery package.
The technical scheme of the utility model is realized like this: the utility model provides a high pressure, low pressure integrated battery package, it includes a plurality of square energy type electricity core and a plurality of square power type electricity core, wherein, a plurality of energy type electricity core set up side by side in the thickness direction, each energy type electricity core electric connection in proper order forms a high pressure total positive pole and a high pressure total negative pole respectively, a plurality of power type electricity core set up side by side and insert respectively between the energy type electricity core, each power type electricity core electric connection in proper order forms a low pressure total positive pole and a low pressure total negative pole respectively.
On the basis of the above technical solution, preferably, two energy type battery cells are arranged between two adjacent power type battery cells.
On the basis of the above technical solution, preferably, two end surfaces of the power type battery cell respectively cling to two energy type battery cells adjacent to the power type battery cell.
On the basis of the technical scheme, preferably, the high-voltage total positive electrode and the high-voltage total negative electrode are respectively electrically connected with a vehicle-mounted driving motor; and the low-voltage total anode and the low-voltage total cathode are respectively electrically connected with the whole vehicle controller.
On the basis of the technical scheme, preferably, the energy type battery cell adopts a lithium ion battery with the energy density of more than or equal to 250Wh/kg and the continuous charge-discharge multiplying power of more than 0.5C; the power type battery cell adopts a lithium ion battery with power density more than or equal to 5000W/kg and pulse amplification rate more than 40C.
Still further preferably, the height and width of the power cell are the same as those of the energy cell, and the thickness of the power cell is smaller than that of the energy cell.
On the basis of the above technical solution, preferably, the distance between the positive electrode post and the negative electrode post of the power type battery cell is greater than or less than that of the energy type battery cell.
Further preferably, the poles between the adjacent power cells and the poles between the adjacent energy cells are electrically connected by busbars, and the busbars between the power cells and the busbars between the energy cells are staggered in the thickness direction of the cells.
On the basis of the above technical solution, preferably, the number of the energy type electric cores is three or more, and the number of the power type electric cores is two or more.
On the basis of the technical scheme, the air conditioner is preferably packaged in a box body.
On the basis of the above technical solutions, preferably, the power type electric core and the energy type electric core are lithium ion batteries.
The utility model discloses a high pressure, low pressure integrated battery package have following beneficial effect for prior art:
(1) The high-voltage battery and the low-voltage battery are integrated, so that the space can be saved, the weight of the whole vehicle is reduced, the production cost is reduced, and the production efficiency is improved; the power type battery cell is inserted between the energy type battery cells, the good low-temperature cold starting performance of the power type battery cell can be utilized, heat is transferred to the energy type battery cell when a vehicle is started, and the low-temperature performance of the battery pack is improved;
(2) The height and width of the power type battery cell are the same as those of the energy type battery cell, so that the power type battery cell is convenient to assemble and integrate, and the thickness of the power type battery cell is smaller than that of the energy type battery cell, so that the power type battery cell is suitable for the characteristic of small capacity of a low-voltage battery;
(3) The distance between the positive pole and the negative pole of the power type battery cell is larger than or smaller than the energy type battery cell, so that circuit faults caused by contact of a busbar are prevented, and confusion of the two battery cells can be prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the high-voltage and low-voltage integrated battery pack of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, the high-voltage and low-voltage integrated battery pack of the present invention includes a plurality of square energy cells 1 and a plurality of square power cells 2.
As a high voltage part, a plurality of energy type cells 1 are arranged side by side in the thickness direction, and the energy type cells 1 are electrically connected in sequence and respectively form a high voltage total positive electrode 11 and a high voltage total negative electrode 12. It is specific, above energy type electricity core 1 can also add end plate and ribbon to form the battery module, a plurality of battery modules are integrated again and are set up in the box, form the battery package, above for prior art, no longer describe herein. Specifically, the high-voltage total positive electrode 11 and the high-voltage total negative electrode 12 are electrically connected with a vehicle-mounted driving motor respectively and used for driving the motor to rotate. Specifically, the energy type battery cell 1 is a lithium ion battery with energy density not less than 250Wh/kg and continuous charge-discharge multiplying power above 0.5C.
As a low voltage portion, a plurality of power cells 2 are arranged side by side and respectively inserted between the energy cells 1, and the power cells 2 are electrically connected in sequence and respectively form a low voltage total positive electrode 21 and a low voltage total negative electrode 22. The high-voltage battery and the low-voltage battery are integrated, so that the space can be saved, the weight of the whole vehicle is reduced, the production cost is reduced, and the production efficiency is improved; the power type battery cell 2 is inserted between the energy type battery cells 1, the good low-temperature cold starting performance of the power type battery cell 2 can be utilized, heat is transferred to the energy type battery cells 1 when a vehicle is started, and the low-temperature performance of the battery pack is improved. Specifically, the low-voltage total positive electrode 21 and the low-voltage total negative electrode 22 are electrically connected with the vehicle control unit respectively. Specifically, the power type electric core 2 adopts a lithium ion battery with power density more than or equal to 5000W/kg, pulse amplification rate more than 40C and excellent low-temperature cold starting performance.
In a preferred embodiment, three or more energy type cells 1 are provided, and two or more power type cells 2 are provided.
As a preferred embodiment, two energy type cells 1 are disposed between two adjacent power type cells 2. So, the equipment of piling up of energy type electricity core 1 when being convenient for actual production, power type electricity core 2 only exists the assembly of single electric core, so be convenient for energy type electricity core 1 and power type electricity core 2 prevent staying in the production process.
In a preferred embodiment, two end faces of the power cell 2 respectively abut against two adjacent energy cells 1. Therefore, when the power type battery cell 2 is cold started at low temperature, some heat can be released, and the energy type battery cell 1 beside the power type battery cell just contacts with the heat for preheating, so that the effect of heat recycling is achieved; the power cell 2 then acts as a heating mat.
Considering that the power type battery cell 2 used on the vehicle has lower capacity requirement, the appearance size is definitely smaller than that of the energy type battery cell 1; however, for the convenience of grouping, the height and width of the power cell 2 are preferably the same, and therefore, as a preferred embodiment, the height and width of the power cell 2 are the same as those of the energy cell 1, and the thickness of the power cell 2 is smaller than that of the energy cell 1.
Considering that the bus bars are welded between adjacent cell poles to achieve electrical connection, if the distances between the positive and negative poles of the energy-type cell 1 and the power-type cell 2 are equal, the bus bars will intersect finally to form a circuit fault, and as a preferred embodiment, the distance between the positive and negative poles of the power-type cell 2 is greater than or less than that of the energy-type cell 1. Specifically, the poles between the adjacent power type battery cells 2 and between the adjacent energy type battery cells 1 are electrically connected through a bus bar, and the bus bar between the power type battery cells 2 and the bus bar between the energy type battery cells 1 are staggered in the thickness direction of the battery cells.
In a preferred embodiment, the power cell 2 and the energy cell 1 are lithium ion batteries
The utility model discloses an equipment mode of high pressure, low pressure integrated battery package as follows:
arranging the power type battery cell 2 and the energy type battery cell 1 side by side according to the mode of figure 1;
the two ends are respectively provided with an end plate, and are grouped by a binding belt and then assembled in the battery box;
the battery box is arranged on an electric automobile, the high-voltage total positive electrode 11 and the high-voltage total negative electrode 12 are respectively electrically connected with the vehicle-mounted driving motor, and the low-voltage total positive electrode 21 and the low-voltage total negative electrode 22 are respectively electrically connected with the whole automobile controller.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a high pressure, low pressure integrated battery package, its includes a plurality of square energy type electricity core (1) and a plurality of square power type electricity core (2), wherein, a plurality of energy type electricity core (1) set up side by side in the thickness direction, and each energy type electricity core (1) electric connection in proper order forms a high pressure total positive pole (11) and a high pressure total negative pole (12) respectively, its characterized in that: the power type battery cores (2) are arranged side by side and are respectively inserted between the energy type battery cores (1), and the power type battery cores (2) are electrically connected in sequence and respectively form a low-voltage total positive electrode (21) and a low-voltage total negative electrode (22).
2. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: two energy type battery cores (1) are arranged between two adjacent power type battery cores (2).
3. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: two end faces of the power type battery cell (2) are respectively attached to two energy type battery cells (1) adjacent to the power type battery cell.
4. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: the high-voltage main positive electrode (11) and the high-voltage main negative electrode (12) are respectively electrically connected with the vehicle-mounted driving motor; and the low-voltage total anode (21) and the low-voltage total cathode (22) are respectively electrically connected with the whole vehicle controller.
5. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: the energy type battery cell (1) adopts a lithium ion battery with the energy density of more than or equal to 250Wh/kg and the continuous charging and discharging multiplying power of more than 0.5C; the power type battery cell (2) adopts a lithium ion battery with power density more than or equal to 5000W/kg and pulse amplification rate more than 40C.
6. The high-voltage, low-voltage integrated battery pack of claim 5, wherein: the height and the width of the power type battery cell (2) are the same as those of the energy type battery cell (1), and the thickness of the power type battery cell (2) is smaller than that of the energy type battery cell (1).
7. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: the distance between the positive pole and the negative pole of the power type battery cell (2) is larger than or smaller than that of the energy type battery cell (1).
8. The high-voltage, low-voltage integrated battery pack according to claim 7, wherein: the poles between the adjacent power type battery cells (2) and between the adjacent energy type battery cells (1) are electrically connected through a busbar, and the busbar between the power type battery cells (2) and the busbar between the energy type battery cells (1) are staggered in the thickness direction of the battery cells.
9. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: the energy type battery cell (1) is provided with three or more than three, and the power type battery cell (2) is provided with two or more than two.
10. The high-voltage, low-voltage integrated battery pack of claim 1, wherein: which is packaged in a box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221410613.9U CN217691402U (en) | 2022-06-07 | 2022-06-07 | High-voltage and low-voltage integrated battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221410613.9U CN217691402U (en) | 2022-06-07 | 2022-06-07 | High-voltage and low-voltage integrated battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217691402U true CN217691402U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221410613.9U Active CN217691402U (en) | 2022-06-07 | 2022-06-07 | High-voltage and low-voltage integrated battery pack |
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| Country | Link |
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| CN (1) | CN217691402U (en) |
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2022
- 2022-06-07 CN CN202221410613.9U patent/CN217691402U/en active Active
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